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A Study to Evaluate Subcutaneous Daratumumab in Combination With Standard Multiple Myeloma Treatment Regimens

A Multicenter Phase 2 Study to Evaluate Subcutaneous Daratumumab in Combination With Standard Multiple Myeloma Treatment Regimens

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03412565
Enrollment
265
Registered
2018-01-26
Start date
2018-04-26
Completion date
2024-04-18
Last updated
2025-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Myeloma

Brief summary

The purpose of this study is to evaluate the clinical benefit of subcutaneous (SC) daratumumab administered in combination with standard multiple myeloma (MM) regimens in participants with MM as measured by overall response rate (ORR) or very good partial response (VGPR) or better rate.

Detailed description

The hypothesis is that the addition of daratumumab administered SC to standard MM regimens will improve responses compared to response data observed in completed phase 3 studies without daratumumab. Disease evaluations will include measurements of myeloma proteins, bone marrow examinations, skeletal surveys, assessment of extramedullary plasmacytomas, and measurements of serum calcium corrected for albumin. Safety will be measured by adverse events, laboratory test results, electrocardiogram (ECGs), vital sign measurements, physical examination findings, SC injection-site assessments, and assessment of Eastern Cooperative Oncology Group (ECOG) performance status score. Study will consist of 3 phases (screening, treatment and follow-up) and duration of study is approximately 3 years.

Interventions

DRUGDaratumumab

Daratumumab will be administered at a dose of 1800 mg by SC injection in Cycles 1 to 4 in D-VRd cohort and until documented progression of disease, unacceptable toxicity, or end of study for D-VMP, D-Rd and D-Kd cohorts.

DRUGBortezomib

Bortezomib will be administered as 1.3 mg/m\^2 SC injection in Cycles 1 to 4 in D-VRd cohort and in Cycles 1 to 9 in D-VMP cohort.

DRUGLenalidomide

Lenalidomide will be administered as 25 mg capsule orally in Cycles 1 to 4 in D-VRd cohort and in all Cycles until documented progression of disease, unacceptable toxicity, or end of study in D-Rd cohort.

DRUGDexamethasone

Dexamethasone will be administered as 20 mg orally or intravenously in Cycles 1 to 4 in D-VRd cohort; 40 mg orally or intravenously in all cycles and thereafter until documented progression of disease, unacceptable toxicity, or end of study in D-Rd and D-Kd cohort.

DRUGMelphalan

Melphalan will be administered as 9 mg/m\^2 orally in Cycles 1 to 9.

DRUGPrednisone

Prednisone will be administered as 60 mg/m\^2 orally in cycles 1 to 9.

DRUGCarfilzomib

Carfilzomib will be administered as 20 mg/m\^2 IV on Day 1 of Cycle 1 only then 70 mg/m\^2 IV on Days 8 and 15 of Cycle 1 and Days 1, 8 and 15 of Cycle 2 and thereafter until documented progression of disease, unacceptable toxicity, or end of study in D-Kd cohort.

Sponsors

Janssen Research & Development, LLC
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Multiple myeloma diagnosed according to the International Myeloma Working Group (IMWG) diagnostic criteria * Measurable, secretory disease as defined by any of the following: 1. Serum monoclonal paraprotein (M-protein) level greater than or equal to (\>=) 1.0 gram per deciliter (g/dL); or 2. Urine M-protein level \>= 200 milligram per 24 hours (mg/24 hours); or 3. Light chain multiple myeloma (MM), for participants without measurable disease in the serum or urine: serum Immunoglobulin (Ig) free light chain (FLC) \>= 10 mg/dL and abnormal FLC ratio * Meets one of the sets of the following criteria: 1. For Daratumumab + bortezomib + lenalidomide + dexamethasone (D-VRd) and Daratumumab + bortezomib + melphalan + prednisone + dexamethasone (D-VMP) regimen: newly diagnosed myeloma 2. For Daratumumab + lenalidomide + dexamethasone (D-Rd) and Daratumumab + Carfilzomib + Dexamethasone (D-Kd) regimen: relapsed or refractory disease 3. D-Kd cohort: Participants must have received only 1 prior line of therapy for MM which included at least 2 consecutive cycles of lenalidomide therapy * Eastern Cooperative Oncology Group (ECOG) Performance Status grade of 0, 1, or 2 * During the study, during dose interruptions, and for 3 months after receiving the last dose of any component of the study treatment, a female participant must agree not to donate eggs (ova, oocytes) and male participants of reproductive potential must not donate semen or sperm during the study, during dose interruptions, or for 3 months after the last dose of any study drug

Exclusion criteria

* History of malignancy (other than MM) unless all treatment of that malignancy was completed at least 2 years before consent and the participant has no evidence of disease further exceptions are squamous and basal cell carcinomas of the skin and carcinoma in situ of the cervix, or breast, or other non-invasive lesion, that in the opinion of the investigator, with concurrence with the sponsor's medical monitor, is considered cured with minimal risk of recurrence within 3 years * Exhibits clinical signs of meningeal involvement of MM * Either of the following: a) Chronic obstructive pulmonary disease with a forced expiratory volume in 1 second (FEV1) is less than (\<) 50 percentage (%) of predicted normal b) Moderate or severe persistent asthma, or a history of asthma within the last 2 years, or currently has uncontrolled asthma of any classification c) For D-Kd cohort: Known infiltrative pulmonary disease or known pulmonary hypertension * Any of the following: a) Known to be seropositive for human immunodeficiency virus; b) Seropositive for hepatitis B (defined by a positive test for hepatitis B surface antigen \[HBsAg\]). Participants with resolved infection (participants who are HBsAg negative but positive for antibodies to hepatitis B core antigen \[Anti-HBc\] and/or antibodies to hepatitis B surface antigen \[Anti-HBs\]) must be screened using real-time polymerase chain reaction (PCR) measurement of hepatitis B virus (HBV) DNA levels. Those who are polymerase chain reaction (PCR) positive will be excluded * Known to be seropositive for hepatitis C (Anti-HCV antibody positive or HCV-RNA quantitation positive) except in the setting of a sustained virologic response \[SVR\], defined as aviremia at least 12 weeks after completion of antiviral therapy * For D-Kd cohort only: Transthoracic echocardiogram showing left ventricular ejection fraction (LVEF) \<40%; uncontrolled hypertension, defined as an average systolic blood pressure greater than (\>)159 millimeters of mercury (mmHg) or diastolic \>99 mmHg despite optimal treatment

Design outcomes

Primary

MeasureTime frameDescription
D-VMP, D-Rd, and D-Kd Cohorts: Overall Response Rate (ORR)Up to 2 years 3 monthsORR was defined as the percentage of participants who achieved partial response (PR) or better according to international myeloma working group (IMWG) criteria. IMWG criteria for PR: greater than or equal to (\>=) 50 percent (%) reduction of serum M-protein and reduction in 24-hour urinary M-protein by \>=90% or to less than (\<) 200 milligrams (mg) per 24 hours, If the serum and urine M-protein are not measurable, a decrease of \>=50% in the difference between involved and uninvolved free light chain (FLC) levels is required in place of the M-protein criteria, If serum and urine M-protein are not measurable, and serum free light assay is also not measurable, \>=50% reduction in bone marrow plasma cells (PCs) is required in place of M-protein, provided baseline bone marrow plasma cell percentage was \>=30%. In addition to the above criteria, if present at baseline, a \>=50% reduction in the size of soft tissue plasmacytomas is also required.
D-VRd Cohort: Percentage of Participants With Very Good Partial Response (VGPR) or Better ResponseUp to 2 years and 3 monthsVGPR or better rate was defined as the percentage of participants who achieved VGPR or complete response (CR) (including stringent complete response \[sCR\]) according to the IMWG criteria during or after the study treatment. VGPR: Serum and urine component detectable by immunofixation but not on electrophoresis, or \>= 90% reduction in serum M-protein plus urine M-protein level \<100 mg/24 hour; CR: negative immunofixation on the serum and urine, Disappearance of any soft tissue plasmacytomas and \<5% PCs in bone marrow; sCR: CR in addition to having a normal FLC ratio and an absence of clonal cells in bone marrow by immunohistochemistry, immunofluorescence, 2-4 color flow cytometry.

Secondary

MeasureTime frameDescription
D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With VGPR or Better ResponseFrom baseline up to 2 years 7 monthsVGPR or better rate was defined as the percentage of participants who achieved VGPR or CR (including sCR) according to the IMWG criteria during or after the study treatment. VGPR: Serum and urine component detectable by immunofixation but not on electrophoresis, or \>= 90% reduction in serum M-protein plus urine M-protein level \<100 mg per 24 hour; CR: negative immunofixation on the serum and urine, Disappearance of any soft tissue plasmacytomas and \<5% PCs in bone marrow; sCR: CR in addition to having a normal FLC ratio and an absence of clonal cells in bone marrow by immunohistochemistry, immunofluorescence, 2-4 color flow cytometry.
D-VRd Cohort: Overall Response Rate (ORR)Up to 2 years and 3 monthsORR was defined as the percentage of participants who achieved a PR or better, IMWG criteria, during the study or during follow up. IMWG criteria for PR \>= 50% reduction of serum M-protein and reduction in 24 hour urinary M-protein by \>=90% or to \<200 mg/24 hours, if the serum and urine M-protein are not measurable, a decrease of \>=50% in the difference between involved and uninvolved FLC levels is required in place of the M-protein criteria, If serum and urine M-protein are not measurable, and serum free light assay is also not measurable, \>=50% reduction in bone marrow PCs is required in place of M-protein, provided baseline bone marrow plasma cell percentage was \>=30%, in addition to the above criteria, if present at baseline, a \>=50% reduction in the size of soft tissue plasmacytomas is also required.
Percentage of Participants With CR or Better ResponseFor D-VRD Arm: Baseline up to 2 years 3 months; For D-VMP, D-Rd and D-Kd Arms: Baseline up to 2 years 7 monthsCR or better rate was defined as the percentage of participants with a CR or better response (that is, CR and sCR) as per IMWG criteria. CR: as negative immunofixation on the serum and urine and disappearance of soft tissue plasmacytomas and less than (\<) 5 percent plasma cells in bone marrow; sCR: CR plus normal FLC ratio and absence of clonal PCs by immunohistochemistry, immunofluorescence or 2- to 4-color flow cytometry.
Maximum Observed Serum Concentration (Cmax) of DaratumumabD-VRd: Day 4 of Cycles 1 and 4 and post treatment at Week 8; D-VMP: Day 4 of Cycles 1 and 2 and post treatment at Week 8; D-Rd and D-Kd: Day 4 of Cycles 1 and 3 and post treatment at Week 8Cmax was defined as maximum serum concentration observed following daratumumab administration. Each cycle for: D-VRd cohort is of 21 days, D-VMP cohort is of 42 days and D-Rd and D-Kd cohorts is of 28 days. Each cohort have a treatment period of 84 days.
Percentage of Participants With Anti-Daratumumab AntibodiesFor D-VRD Arm: Baseline up to 2 years 3 months; For D-VMP, D-Rd and D-Kd Arms: Baseline up to 2 years 7 monthsPercentage of participants with antibodies to daratumumab were reported.
Percentage of Participants With Anti-rHuPH20 AntibodiesFor D-VRD Arm: Baseline up to 2 years 3 months; For D-VMP, D-Rd and D-Kd Arms: Baseline up to 2 years 7 monthsPercentage of participants with antibodies to rHuPH20 were reported.
D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With Minimal Residual Disease (MRD) Negative RateUp to 2 years and 3 monthsMRD negativity rate was defined as the percentage of participants who were considered MRD negative after MRD testing at any timepoint after the first dose by bone marrow aspirate. MRD negativity rate was assessed by next-generation sequencing at a threshold of \<10\^5.
D-VMP, D-Rd and D-Kd Cohorts: Duration of Response (DOR)From baseline up to 2 years 7 monthsDOR was defined as the time from the date of initial documented response (PR or better response) to the date of first documented evidence of progressive disease (PD) or death due to PD. PD is defined as an increase of 25% from the lowest response value in one of the following: serum and urine M-component (absolute increase must be \>=0.5 gram per deciliter \[g/dL\] and \>=200 mg/24 hours respectively); only in participants without measurable serum and urine M-protein levels the difference between involved and uninvolved FLC levels (absolute increase must be \>10 mg/dL); definite development of new bone lesions or soft tissue plasmacytomas or definite increase in the size of existing bone lesions or soft tissue plasmacytomas; development of hypercalcemia (corrected serum calcium \>11.5 mg/dL) that can be attributed solely to PC proliferative disorder.
Percentage of Participants With Infusion-Related Reactions (IRRs)For D-VRD Arm: Baseline up to 2 years 3 months; For D-VMP, D-Rd and D-Kd Arms: Baseline up to 2 years 7 monthsPercentage of Participants with IRRs were reported. The administration-related systemic reactions are referred to as IRRs.

Countries

Brazil, Czechia, France, Germany, Israel, Japan, Spain, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Daratumumab (D)+Bortezomib+Lenalidomide+Dexamethasone (D-VRd)
Participants received daratumumab 1800 milligrams (mg) as a subcutaneous (SC) injection on Days 1, 8 and 15 of Cycles 1 to 3 (each cycle of 21 days) and on Day 1 of Cycle 4; bortezomib 1.3 milligrams per square meter (mg/m\^2) SC injection on Days 1, 4, 8 and 11 of Cycles 1 to 4; lenalidomide 25 mg orally on Day 1 through Day 14 of Cycles 1 to 4 and dexamethasone 20 mg orally or intravenously (IV) on Days 1, 2 ,8, 9, 15 and 16 of Cycle 1 to 4.
67
D + Bortezomib + Melphalan + Prednisone (D-VMP)
Participants received daratumumab 1800 mg by SC injection on Days 1, 8, 15, 22, 29 and 36 of Cycle 1, then on Days 1 and 22 in Cycles 2 to 9, and Day 1 of Cycle 10 and thereafter until documented progression of disease, unacceptable toxicity, or up to 2 years and 7 months; bortezomib 1.3 mg/m\^2 SC injection on Day 1, 4, 8, 11, 22, 25, 29 and 32 of Cycle 1 and on Days 1, 8, 22 and 29 of Cycles 2 to 9; melphalan 9 mg/m\^2 orally on Day 1 through Day 4 of Cycles 1 to 9; prednisone 60 mg/m\^2 orally on Days 1 to 4 of cycles 1 to 9.
67
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)
Participants received daratumumab 1800 mg by SC injection on Days 1, 8, 15 and 22 of Cycles 1 and 2, then on Day 1 and 15 of Cycles 3 to 6, and on Day 1 of Cycle 7 and thereafter until documented progression of disease, unacceptable toxicity, or up to 2 years and 7 months; lenalidomide 25 mg orally on Day 1 through Day 21 of each cycle until documented progression of disease, unacceptable toxicity, or end of study and dexamethasone 40 mg orally or intravenously weekly until documented progression of disease, unacceptable toxicity, or up to 2 years and 7 months.
65
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)
Participants received daratumumab 1800 mg by SC injection on Days 1, 8, 15 and 22 of Cycles 1 and 2 (each cycle is of 28 days), then on Day 1 and 15 of Cycles 3 to 6, and on Day 1 of Cycle 7 and thereafter until documented progression of disease, unacceptable toxicity, or up to 2 years and 7 months; Carfilzomib 20 mg/m\^2 IV on Day 1 of Cycle 1 only, then 70 mg/m\^2 IV on Days 8 and 15 of Cycle 1 and Days 1, 8 and 15 of Cycle 2 and thereafter until documented progression of disease, unacceptable toxicity, or up to 2 years and 7 months and dexamethasone 40 mg orally or IV weekly for Cycles 1-9, then on Days 1, 8, 15 of each cycle for Cycle 10 and thereafter until documented progression of disease, unacceptable toxicity, or up to 2 years and 7 months.
66
Total265

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyData collection ended0414140
Overall StudyDeath1345
Overall StudyLost to Follow-up0010
Overall StudyPhysician Decision0001
Overall StudyWithdrawal by Subject0455

Baseline characteristics

CharacteristicD + Bortezomib + Melphalan + Prednisone (D-VMP)Daratumumab + Lenalidomide + Dexamethasone (D-Rd)Daratumumab (D)+Bortezomib+Lenalidomide+Dexamethasone (D-VRd)Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Total
Age, Continuous74.9 years
STANDARD_DEVIATION 4.54
66.8 years
STANDARD_DEVIATION 9.58
57.3 years
STANDARD_DEVIATION 9.47
61 years
STANDARD_DEVIATION 9.77
65 years
STANDARD_DEVIATION 10.87
Ethnicity (NIH/OMB)
Hispanic or Latino
6 Participants0 Participants3 Participants7 Participants16 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
39 Participants45 Participants34 Participants43 Participants161 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
22 Participants20 Participants30 Participants16 Participants88 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
5 Participants0 Participants0 Participants0 Participants5 Participants
Race (NIH/OMB)
Black or African American
1 Participants2 Participants5 Participants2 Participants10 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
15 Participants18 Participants24 Participants16 Participants73 Participants
Race (NIH/OMB)
White
46 Participants45 Participants38 Participants48 Participants177 Participants
Region of Enrollment
BRAZIL
4 Participants0 Participants1 Participants0 Participants5 Participants
Region of Enrollment
CZECH REPUBLIC
4 Participants15 Participants4 Participants0 Participants23 Participants
Region of Enrollment
FRANCE
21 Participants17 Participants26 Participants15 Participants79 Participants
Region of Enrollment
GERMANY
0 Participants0 Participants0 Participants19 Participants19 Participants
Region of Enrollment
ISRAEL
7 Participants14 Participants0 Participants0 Participants21 Participants
Region of Enrollment
JAPAN
4 Participants0 Participants0 Participants0 Participants4 Participants
Region of Enrollment
SPAIN
19 Participants0 Participants11 Participants25 Participants55 Participants
Region of Enrollment
UNITED KINGDOM
8 Participants12 Participants9 Participants0 Participants29 Participants
Region of Enrollment
UNITED STATES
0 Participants7 Participants16 Participants7 Participants30 Participants
Sex: Female, Male
Female
36 Participants20 Participants19 Participants32 Participants107 Participants
Sex: Female, Male
Male
31 Participants45 Participants48 Participants34 Participants158 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
1 / 673 / 674 / 655 / 66
other
Total, other adverse events
67 / 6767 / 6765 / 6566 / 66
serious
Total, serious adverse events
19 / 6730 / 6737 / 6522 / 66

Outcome results

Primary

D-VMP, D-Rd, and D-Kd Cohorts: Overall Response Rate (ORR)

ORR was defined as the percentage of participants who achieved partial response (PR) or better according to international myeloma working group (IMWG) criteria. IMWG criteria for PR: greater than or equal to (\>=) 50 percent (%) reduction of serum M-protein and reduction in 24-hour urinary M-protein by \>=90% or to less than (\<) 200 milligrams (mg) per 24 hours, If the serum and urine M-protein are not measurable, a decrease of \>=50% in the difference between involved and uninvolved free light chain (FLC) levels is required in place of the M-protein criteria, If serum and urine M-protein are not measurable, and serum free light assay is also not measurable, \>=50% reduction in bone marrow plasma cells (PCs) is required in place of M-protein, provided baseline bone marrow plasma cell percentage was \>=30%. In addition to the above criteria, if present at baseline, a \>=50% reduction in the size of soft tissue plasmacytomas is also required.

Time frame: Up to 2 years 3 months

Population: All treated analysis set included all participants who have received at least 1 dose of study treatment. This primary outcome measure (OM) was planned to be analyzed for D-VMP, D-Rd and D-Kd cohorts only.

ArmMeasureValue (NUMBER)
D + Bortezomib + Melphalan + Prednisone (D-VMP)D-VMP, D-Rd, and D-Kd Cohorts: Overall Response Rate (ORR)88.1 percentage of participants
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)D-VMP, D-Rd, and D-Kd Cohorts: Overall Response Rate (ORR)90.8 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)D-VMP, D-Rd, and D-Kd Cohorts: Overall Response Rate (ORR)84.8 percentage of participants
Primary

D-VRd Cohort: Percentage of Participants With Very Good Partial Response (VGPR) or Better Response

VGPR or better rate was defined as the percentage of participants who achieved VGPR or complete response (CR) (including stringent complete response \[sCR\]) according to the IMWG criteria during or after the study treatment. VGPR: Serum and urine component detectable by immunofixation but not on electrophoresis, or \>= 90% reduction in serum M-protein plus urine M-protein level \<100 mg/24 hour; CR: negative immunofixation on the serum and urine, Disappearance of any soft tissue plasmacytomas and \<5% PCs in bone marrow; sCR: CR in addition to having a normal FLC ratio and an absence of clonal cells in bone marrow by immunohistochemistry, immunofluorescence, 2-4 color flow cytometry.

Time frame: Up to 2 years and 3 months

Population: All treated analysis set included all participants who have received at least 1 dose of study treatment. This primary outcome measure (OM) was planned to be analyzed for D-VRd cohort only.

ArmMeasureValue (NUMBER)
D + Bortezomib + Melphalan + Prednisone (D-VMP)D-VRd Cohort: Percentage of Participants With Very Good Partial Response (VGPR) or Better Response71.6 percentage of participants
Secondary

D-VMP, D-Rd and D-Kd Cohorts: Duration of Response (DOR)

DOR was defined as the time from the date of initial documented response (PR or better response) to the date of first documented evidence of progressive disease (PD) or death due to PD. PD is defined as an increase of 25% from the lowest response value in one of the following: serum and urine M-component (absolute increase must be \>=0.5 gram per deciliter \[g/dL\] and \>=200 mg/24 hours respectively); only in participants without measurable serum and urine M-protein levels the difference between involved and uninvolved FLC levels (absolute increase must be \>10 mg/dL); definite development of new bone lesions or soft tissue plasmacytomas or definite increase in the size of existing bone lesions or soft tissue plasmacytomas; development of hypercalcemia (corrected serum calcium \>11.5 mg/dL) that can be attributed solely to PC proliferative disorder.

Time frame: From baseline up to 2 years 7 months

Population: Analysis population included number of responders (partial response or better) in each cohort. This secondary outcome measure was planned to be analyzed for D-VMP, D-Rd and D-Kd cohorts.

ArmMeasureValue (MEDIAN)
D + Bortezomib + Melphalan + Prednisone (D-VMP)D-VMP, D-Rd and D-Kd Cohorts: Duration of Response (DOR)NA months
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)D-VMP, D-Rd and D-Kd Cohorts: Duration of Response (DOR)NA months
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)D-VMP, D-Rd and D-Kd Cohorts: Duration of Response (DOR)NA months
Secondary

D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With Minimal Residual Disease (MRD) Negative Rate

MRD negativity rate was defined as the percentage of participants who were considered MRD negative after MRD testing at any timepoint after the first dose by bone marrow aspirate. MRD negativity rate was assessed by next-generation sequencing at a threshold of \<10\^5.

Time frame: Up to 2 years and 3 months

Population: All treated analysis set included all participants who have received at least 1 dose of study treatment. This secondary OM was planned to be analyzed for D-VMP, D-Rd and D-Kd cohorts only.

ArmMeasureValue (NUMBER)
D + Bortezomib + Melphalan + Prednisone (D-VMP)D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With Minimal Residual Disease (MRD) Negative Rate25.4 percentage of participants
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With Minimal Residual Disease (MRD) Negative Rate21.5 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With Minimal Residual Disease (MRD) Negative Rate27.3 percentage of participants
Secondary

D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With VGPR or Better Response

VGPR or better rate was defined as the percentage of participants who achieved VGPR or CR (including sCR) according to the IMWG criteria during or after the study treatment. VGPR: Serum and urine component detectable by immunofixation but not on electrophoresis, or \>= 90% reduction in serum M-protein plus urine M-protein level \<100 mg per 24 hour; CR: negative immunofixation on the serum and urine, Disappearance of any soft tissue plasmacytomas and \<5% PCs in bone marrow; sCR: CR in addition to having a normal FLC ratio and an absence of clonal cells in bone marrow by immunohistochemistry, immunofluorescence, 2-4 color flow cytometry.

Time frame: From baseline up to 2 years 7 months

Population: All treated analysis set included all participants who have received at least 1 dose of study treatment. This secondary OM was planned to be analyzed for D-VMP, D-Rd and D-Kd cohorts only.

ArmMeasureValue (NUMBER)
D + Bortezomib + Melphalan + Prednisone (D-VMP)D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With VGPR or Better Response77.6 percentage of participants
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With VGPR or Better Response80.0 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)D-VMP, D-Rd, and D-Kd Cohorts: Percentage of Participants With VGPR or Better Response77.3 percentage of participants
Secondary

D-VRd Cohort: Overall Response Rate (ORR)

ORR was defined as the percentage of participants who achieved a PR or better, IMWG criteria, during the study or during follow up. IMWG criteria for PR \>= 50% reduction of serum M-protein and reduction in 24 hour urinary M-protein by \>=90% or to \<200 mg/24 hours, if the serum and urine M-protein are not measurable, a decrease of \>=50% in the difference between involved and uninvolved FLC levels is required in place of the M-protein criteria, If serum and urine M-protein are not measurable, and serum free light assay is also not measurable, \>=50% reduction in bone marrow PCs is required in place of M-protein, provided baseline bone marrow plasma cell percentage was \>=30%, in addition to the above criteria, if present at baseline, a \>=50% reduction in the size of soft tissue plasmacytomas is also required.

Time frame: Up to 2 years and 3 months

Population: All treated analysis set included all participants who have received at least 1 dose of study treatment. This secondary OM was planned to be analyzed for D-VRd cohort only.

ArmMeasureValue (NUMBER)
D + Bortezomib + Melphalan + Prednisone (D-VMP)D-VRd Cohort: Overall Response Rate (ORR)97.0 percentage of participants
Secondary

Maximum Observed Serum Concentration (Cmax) of Daratumumab

Cmax was defined as maximum serum concentration observed following daratumumab administration. Each cycle for: D-VRd cohort is of 21 days, D-VMP cohort is of 42 days and D-Rd and D-Kd cohorts is of 28 days. Each cohort have a treatment period of 84 days.

Time frame: D-VRd: Day 4 of Cycles 1 and 4 and post treatment at Week 8; D-VMP: Day 4 of Cycles 1 and 2 and post treatment at Week 8; D-Rd and D-Kd: Day 4 of Cycles 1 and 3 and post treatment at Week 8

Population: Pharmacokinetics (PK) analysis set: participants who received at least 1 dose of daratumumab SC and had at least 1 PK sample value after first dose. 'N' (number of participants analyzed): participants evaluated for this OM; 'n' (number analyzed): participants analyzed at specific timepoints. The 0 in the number analyzed field indicates that no participant was evaluable for PK at that timepoint.

ArmMeasureGroupValue (MEAN)Dispersion
D + Bortezomib + Melphalan + Prednisone (D-VMP)Maximum Observed Serum Concentration (Cmax) of DaratumumabPost-treatment Phase Week 8263 micrograms per milliliter (mcg/mL)Standard Deviation 190
D + Bortezomib + Melphalan + Prednisone (D-VMP)Maximum Observed Serum Concentration (Cmax) of DaratumumabCycle 4 Day 4746 micrograms per milliliter (mcg/mL)Standard Deviation 275
D + Bortezomib + Melphalan + Prednisone (D-VMP)Maximum Observed Serum Concentration (Cmax) of DaratumumabCycle 1 Day 4100 micrograms per milliliter (mcg/mL)Standard Deviation 48.5
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)Maximum Observed Serum Concentration (Cmax) of DaratumumabPost-treatment Phase Week 8162 micrograms per milliliter (mcg/mL)
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)Maximum Observed Serum Concentration (Cmax) of DaratumumabCycle 2 Day 4612 micrograms per milliliter (mcg/mL)Standard Deviation 256
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)Maximum Observed Serum Concentration (Cmax) of DaratumumabCycle 1 Day 498.6 micrograms per milliliter (mcg/mL)Standard Deviation 51.6
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Maximum Observed Serum Concentration (Cmax) of DaratumumabCycle 3 Day 4648 micrograms per milliliter (mcg/mL)Standard Deviation 238
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Maximum Observed Serum Concentration (Cmax) of DaratumumabCycle 1 Day 4108 micrograms per milliliter (mcg/mL)Standard Deviation 49.9
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Maximum Observed Serum Concentration (Cmax) of DaratumumabCycle 3 Day 4869 micrograms per milliliter (mcg/mL)Standard Deviation 274
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Maximum Observed Serum Concentration (Cmax) of DaratumumabCycle 1 Day 4137 micrograms per milliliter (mcg/mL)Standard Deviation 56.7
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Maximum Observed Serum Concentration (Cmax) of DaratumumabPost-treatment Phase Week 849.3 micrograms per milliliter (mcg/mL)Standard Deviation 109
Secondary

Percentage of Participants With Anti-Daratumumab Antibodies

Percentage of participants with antibodies to daratumumab were reported.

Time frame: For D-VRD Arm: Baseline up to 2 years 3 months; For D-VMP, D-Rd and D-Kd Arms: Baseline up to 2 years 7 months

Population: Immunogenicity-evaluable analysis set was defined as all participants who received at least 1 dose administration of daratumumab SC and had at least 1 immunogenicity sample for detection of anti-daratumumab antibodies after the first dose.

ArmMeasureValue (NUMBER)
D + Bortezomib + Melphalan + Prednisone (D-VMP)Percentage of Participants With Anti-Daratumumab Antibodies0 percentage of participants
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)Percentage of Participants With Anti-Daratumumab Antibodies0 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Percentage of Participants With Anti-Daratumumab Antibodies0 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Percentage of Participants With Anti-Daratumumab Antibodies0 percentage of participants
Secondary

Percentage of Participants With Anti-rHuPH20 Antibodies

Percentage of participants with antibodies to rHuPH20 were reported.

Time frame: For D-VRD Arm: Baseline up to 2 years 3 months; For D-VMP, D-Rd and D-Kd Arms: Baseline up to 2 years 7 months

Population: Immunogenicity-evaluable analysis set for rHuPH20 is defined as all participants who received at least one dose of daratumumab SC and had appropriate plasma samples for detection of antibodies to rHuPH20 (at least 1 sample after the start of the first dose of daratumumab SC).

ArmMeasureValue (NUMBER)
D + Bortezomib + Melphalan + Prednisone (D-VMP)Percentage of Participants With Anti-rHuPH20 Antibodies6.1 percentage of participants
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)Percentage of Participants With Anti-rHuPH20 Antibodies3.1 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Percentage of Participants With Anti-rHuPH20 Antibodies4.8 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Percentage of Participants With Anti-rHuPH20 Antibodies4.7 percentage of participants
Secondary

Percentage of Participants With CR or Better Response

CR or better rate was defined as the percentage of participants with a CR or better response (that is, CR and sCR) as per IMWG criteria. CR: as negative immunofixation on the serum and urine and disappearance of soft tissue plasmacytomas and less than (\<) 5 percent plasma cells in bone marrow; sCR: CR plus normal FLC ratio and absence of clonal PCs by immunohistochemistry, immunofluorescence or 2- to 4-color flow cytometry.

Time frame: For D-VRD Arm: Baseline up to 2 years 3 months; For D-VMP, D-Rd and D-Kd Arms: Baseline up to 2 years 7 months

Population: All treated analysis set included all participants who have received at least 1 dose of study treatment.

ArmMeasureValue (NUMBER)
D + Bortezomib + Melphalan + Prednisone (D-VMP)Percentage of Participants With CR or Better Response16.4 percentage of participants
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)Percentage of Participants With CR or Better Response55.2 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Percentage of Participants With CR or Better Response50.8 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Percentage of Participants With CR or Better Response42.4 percentage of participants
Secondary

Percentage of Participants With Infusion-Related Reactions (IRRs)

Percentage of Participants with IRRs were reported. The administration-related systemic reactions are referred to as IRRs.

Time frame: For D-VRD Arm: Baseline up to 2 years 3 months; For D-VMP, D-Rd and D-Kd Arms: Baseline up to 2 years 7 months

Population: All treated analysis set included all participants who have received at least 1 dose of study treatment.

ArmMeasureValue (NUMBER)
D + Bortezomib + Melphalan + Prednisone (D-VMP)Percentage of Participants With Infusion-Related Reactions (IRRs)9.0 percentage of participants
Daratumumab + Lenalidomide + Dexamethasone (D-Rd)Percentage of Participants With Infusion-Related Reactions (IRRs)9.0 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Percentage of Participants With Infusion-Related Reactions (IRRs)4.6 percentage of participants
Daratumumab + Carfilzomib + Dexamethasone (D-Kd)Percentage of Participants With Infusion-Related Reactions (IRRs)4.5 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026